Overwintering guide
How to overwinter tussock needlegrass
Winter watering
No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.
The mistake that kills tussock needlegrass in winter
Cutting tussock needlegrass hard back in autumn "to tidy up". That removes the growth that shelters the crown, and on some plants removes next season's flower buds entirely.
More tussock needlegrass care
Overwintering tussock needlegrass — FAQ
Does tussock needlegrass need to come indoors for winter?
Tussock Needlegrass is hardy to roughly USDA zone 7 — winter lows around -18°C. That means it can stay outside all winter in most temperate gardens. Tussock Needlegrass is properly hardy and overwinters outside without fuss. Tidy away anything dead or diseased, apply a mulch over the crown to steady soil temperatures, and otherwise leave it alone — many hardy plants actually need a cold period to flower and grow well the following year. Save hard pruning for the right season rather than doing it in autumn.
When should I move tussock needlegrass for winter?
Tidy and mulch in late autumn; leave the plant undisturbed until spring.
How often should I water tussock needlegrass in winter?
No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.
What kills tussock needlegrass over winter?
Cutting tussock needlegrass hard back in autumn "to tidy up". That removes the growth that shelters the crown, and on some plants removes next season's flower buds entirely.